When it comes to solar energy, picking the right inverter is really important. The right choice helps make your solar power system efficient, reliable, and effective. Two of the top brands you might hear about are Solis and Sungrow. They both offer cool technology and lots of options. Let’s break down what makes each one special so you can decide which is best for you.
Comparison of Solis and Sungrow 3-Phase Inverters
General Features
| Feature | Sungrow | Solis |
|---|---|---|
| Model Names | SH5.0RT, SH6.0RT, SH8.0RT, SH10RT | Solis-25K-5G, Solis-30K-5G, Solis-33K-5G, Solis-36K-5G, Solis-40K-5G, Solis-40K-HV-5G, Solis-50K-HV-5G |
| Type | 3-Phase | 3-Phase |
| Efficiency | Max: 98.4%, European: 97.9% | Max: 98.8%, European: 98.3% |
| Operating Temp. Range | -25°C to 60°C | -25°C to 60°C |
| Ingress Protection | IP65 | IP65 |
| Weight | 27 kg | 45 kg |
Electrical Specifications
| Specification | Sungrow | Solis |
|---|---|---|
| Max. PV Input Power | 12000 W | 38 kW (Solis-25K-5G) to 75 kW (Solis-50K-HV-5G) |
| Max. Input Voltage | 1000 V | 1100 V |
| MPPT Voltage Range | 200 – 950 V | 200 – 1000 V |
| Max. Input Current | 32 A | 26 A (Solis-25K-5G) to 4*26 A (Solis-50K-HV-5G) |
| Rated Output Power | 5000 W (SH5.0RT) to 10000 W (SH10RT) | 25000 W (Solis-25K-5G) to 50000 W (Solis-50K-HV-5G) |
| Max. Output Power | 7200 VA (5 min, SH5.0RT) to 12000 VA (5 min, SH10RT) | 27500 W (Solis-25K-5G) to 55000 W (Solis-50K-HV-5G) |
| Rated Grid Voltage | 3/N/PE, 220/380 V, 230/400 V, 240/415 V | 3/N/PE, 220 V / 380 V, 230 V / 400 V, 3/PE, 480 V |
| Rated Grid Frequency | 50/60 Hz | 50/60 Hz |
Protective Features
| Feature | Sungrow | Solis |
|---|---|---|
| DC Reverse-Polarity Protection | Yes | Yes |
| Short Circuit Protection | Yes | Yes |
| Surge Protection | DC Type II / AC Type II | DC Type II / AC Type II |
| Anti-Islanding Protection | Yes | Yes |
| Temperature Protection | Yes | Yes |
| Strings Monitoring | Yes | Yes |
| Integrated PID Recovery | Optional | Yes (1) |
| Integrated AFCI | Yes | Yes |
| Integrated DC Switch | Optional | Yes |
Additional Features
| Feature | Sungrow | Solis |
|---|---|---|
| Communication | RS485, WLAN, Ethernet, CAN, 4×DI, 1×DO | RS485, Optional: Wi-Fi, GPRS |
| Display | LED | LCD |
| Cooling Concept | Natural convection | Natural convection |
| Mounting Method | Wall-mounting bracket | Not specified |
Comparison of Solis and Sungrow Single-Phase Inverters
General Features
| Feature | Sungrow SG3K/3K6/4K/4K6/5K/6K-D | Solis (25-50)K-5G |
|---|---|---|
| Model Names | SG3K-D, SG3K6-D, SG4K-D, SG4K6-D, SG5K-D, SG6K-D | Solis-25K-5G, Solis-30K-5G, Solis-33K-5G, Solis-36K-5G, Solis-40K-5G, Solis-40K-HV-5G, Solis-50K-HV-5G |
| Type | Single-phase (Hybrid) | Single-phase |
| Efficiency | Max: 98.4%, European: 98.0% | Max: 98.8%, European: 98.3% |
| Operating Temp. Range | -25°C to 60°C | -25°C to 60°C |
| Ingress Protection | IP65 | IP65 |
| Weight | 11.5 kg | 45 kg |
Electrical Specifications
| Specification | Sungrow | Solis |
|---|---|---|
| Max. PV Input Power | Not specified | 38 kW (Solis-25K-5G) to 75 kW (Solis-50K-HV-5G) |
| Max. Input Voltage | 600 V | 1100 V |
| MPPT Voltage Range | 90 – 560 V | 200 – 1000 V |
| Max. Input Current | 20 A (10 A / 10 A) | 26 A (Solis-25K-5G) to 4*26 A (Solis-50K-HV-5G) |
| Rated Output Power | 3000 W (SG3K-D) to 6000 W (SG6K-D) | 25000 W (Solis-25K-5G) to 50000 W (Solis-50K-HV-5G) |
| Max. Output Power | 3150 VA (SG3K-D) to 7200 VA (SG6K-D) | 27500 W (Solis-25K-5G) to 55000 W (Solis-50K-HV-5G) |
| Rated Grid Voltage | 230 Vac | 3/N/PE, 220 V / 380 V, 230 V / 400 V, 3/PE, 480 V |
| Rated Grid Frequency | 50/60 Hz | 50/60 Hz |
Protective Features
| Feature | Sungrow | Solis |
|---|---|---|
| DC Reverse-Polarity Protection | Yes | Yes |
| Short Circuit Protection | Yes | Yes |
| Surge Protection | DC Type II / AC Type II | DC Type II / AC Type II |
| Anti-Islanding Protection | Yes | Yes |
| Temperature Protection | Yes | Yes |
| Strings Monitoring | Yes | Yes |
| Integrated PID Recovery | Optional | Yes (1) |
| Integrated AFCI | Yes | Yes |
| Integrated DC Switch | Optional | Yes |
Additional Features
| Feature | Sungrow | Solis |
|---|---|---|
| Communication | Wifi / Ethernet (optional) | RS485, Optional: Wi-Fi, GPRS |
| Display | LCD | LCD |
| Cooling Concept | Natural cooling | Natural convection |
| Mounting Method | Wall-mounting bracket | Not specified |
In-Depth Analysis and Key Takeaways
Efficiency and Performance
Both Solis and Sungrow inverters are known for their high efficiency. Solis inverters boast a maximum efficiency of 98.8%, while Sungrow inverters are slightly behind with a maximum efficiency of 98.4%. The European efficiency ratings also follow a similar trend, making both brands highly competitive in terms of energy conversion efficiency.
Range of Models and Capacities
Sungrow offers a diverse range of inverters, including hybrid, string, and central inverters, catering to both residential and commercial applications. Their capacities range from 3kW to 110kW for different models. On the other hand, Solis provides string inverters with capacities ranging from 25kW to 50kW, suitable for various applications. Solis also offers both on-grid and off-grid models, providing flexibility for different installation scenarios.
Protective and Safety Features
Safety is a paramount concern for both Sungrow and Solis. Both brands incorporate advanced protective features such as DC reverse-polarity protection, short circuit protection, surge protection, and anti-islanding protection. Additionally, both inverters include temperature protection and monitoring capabilities to ensure safe and reliable operation.
Communication and Monitoring
In terms of communication, Sungrow inverters come equipped with RS485, WLAN, Ethernet, CAN, and more, providing robust connectivity options. Solis inverters offer similar features with RS485 and optional Wi-Fi and GPRS connectivity. Both brands provide monitoring solutions via apps or web platforms, allowing users to track the performance of their solar systems in real-time.
Installation and Maintenance
Sungrow inverters are designed with user-friendly features such as push-in connectors, mounting plates with built-in levels, and easy commissioning via app or LCD, ensuring quick and hassle-free installation. Solis inverters, while not specifying detailed installation features, are known for their reliable design and easy maintenance.
Market Differentiation
Sungrow sets itself apart with cutting-edge technology and comprehensive solutions for efficient energy management. Their storage systems enhance grid flexibility by storing excess energy and delivering it when needed. Solis, on the other hand, is renowned for its high efficiency and wide voltage range, making it a preferred choice for various commercial and residential applications.
Real User Feedback
A real user review highlights the practical aspects of using these inverters. Craig, a user, mentioned replacing a Solis 4G 3-Phase 5KW inverter with a 25KW Solis unit. He appreciated the cost-effectiveness and reliability of Solis but noted some concerns with Sungrow regarding firmware updates affecting monitoring solutions. Despite this, Sungrow has a reliable track record.
Conclusion
Both Solis and Sungrow offer high-quality inverters with advanced features and robust performance. While Solis excels in efficiency and range of capacities, Sungrow stands out with its comprehensive energy management solutions and user-friendly installation features. Depending on your specific needs, either brand can be a great choice for your solar power system.
Choosing between Solis and Sungrow ultimately depends on your specific requirements, including the size of your solar system, budget, and desired features. By understanding the detailed specifications and features of each brand, you can make an informed decision and ensure optimal performance for your solar power setup.
